BS EN 62421-2007 Electronics assembly technology Electronic modules《电子组装技术 电子模块》.pdf

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1、BRITISH STANDARDBS EN 62421:2007Electronics assembly technology Electronic modules The European Standard EN 62421:2007 has the status of a British StandardICS 31.190g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g

2、48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 62421:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2007 BSI 2007ISBN 978 0 580 55762 0National forewordThis British Standard is the UK implementation of

3、 EN 62421:2007. It is identical to IEC 62421:2007.The UK participation in its preparation was entrusted to Technical Committee EPL/501, Electronic assembly technology.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport t

4、o include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 62421 NORME EUROPENNE EUROPISCHE NORM

5、 October 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by any m

6、eans reserved worldwide for CENELEC members. Ref. No. EN 62421:2007 E ICS 31.190 English version Electronics assembly technology - Electronic modules (IEC 62421:2007) Techniques dassemblage des composants lectroniques - Modules lectroniques (CEI 62421:2007) Montageverfahren fr elektronische Baugrupp

7、en - Elektronikmodule (IEC 62421:2007) This European Standard was approved by CENELEC on 2007-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration

8、. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by transla

9、tion under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finl

10、and, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 91/689/FDIS, future edition 1 of IEC 62421, p

11、repared by IEC TC 91, Electronics assembly technology, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62421 on 2007-10-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national sta

12、ndard or by endorsement (dop) 2008-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-10-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 62421:2007 was approved by CENELEC as a European Stan

13、dard without any modification. _ EN 62421:2007 2 CONTENTS 1 Scope and object5 2 Normative references .5 3 Terms and definitions .6 4 Business model and interface between supplier and user .6 4.1 Business model (see Figure 1 and Figure 2)6 4.1.1 General .6 4.1.2 E-type business model 7 4.1.3 M-type b

14、usiness model8 4.1.4 F-type business model.8 4.2 S-U interface (see Figure 1) 8 4.2.1 S-U interface 1 8 4.2.2 S-U interface2 .8 4.2.3 S-U interface3 .8 4.3 Standardization areas .8 5 Preferred ratings 9 5.1 General .9 5.2 Preferred operating temperature range10 5.3 Preferred rated voltage10 6 Tests

15、and measuring methods10 6.1 Standard atmospheric conditions.10 6.1.1 Standard atmospheric conditions for testing 10 6.1.2 Referee conditions 10 6.1.3 Reference conditions.11 6.2 Electrical performance tests 11 6.2.1 General .11 6.2.2 Protection of electronic modules and test equipment .11 6.2.3 Accu

16、racy of measurement .11 6.3 Mechanical performance tests .12 6.3.1 Robustness of terminations and integral mounting devices 12 6.3.2 Resistance to soldering heat .13 6.3.3 Solderability 13 6.3.4 Shock 13 6.3.5 Vibration (sinusoidal).13 6.3.6 Resistance to solvents.14 6.4 Climatic performance tests 1

17、4 6.4.1 Dry heat 14 6.4.2 Cold 14 6.4.3 Damp heat, steady state15 6.4.4 Change of temperature15 EN 62421:2007 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications16Figure 1 S-U interfaces in each business model.7 Figure 2 Standardiz

18、ation areas in M-type and F-type business models 9 Table 1 Preferred temperatures to be selected for temperature ranges (C).10 Table 2 Referee conditions 11 Table 3 Application 13 EN 62421:2007 4 ELECTRONICS ASSEMBLY TECHNOLOGY ELECTRONIC MODULES 1 Scope and object This International Standard provid

19、es a generic standard of electronic modules on which their sectional standards are based. This standard provides a definition, business model, interface between the trading partners, and related areas of standardization of electronic modules. In addition a generic set of test method is provided. 2 N

20、ormative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068 (all parts), Enviro

21、nmental testing IEC 60068-1:1988, Environmental testing Part 1: General and guidance IEC 60068-2-1: Environmental Testing Part 2-1: Tests Test A: Cold IEC 60068-2-2: Environmental testing Part 2-2: Tests Tests B: Dry heat IEC 60068-2-6: Environmental testing Part 2-6: Tests Test Fc: Vibration (sinus

22、oidal) IEC 60068-2-14: Environmental testing Part 2-14: Tests Test N: Change of temperature IEC 60068-2-20: Environmental testing Part 2-20: Tests Test T: Soldering IEC 60068-2-21: Environmental testing Part 2-21: Tests Test U: Robustness of terminations and integral mounting devices IEC 60068-2-27:

23、 Environmental testing Part 2-27: Tests Test Ea and guidance: Shock IEC 60068-2-45: Environmental testing Part 2-45: Tests Test XA and guidance: Immersion in cleaning solvents IEC 60068-2-58: Environmental testing Part 2-58: Tests Test Td: Test methods for solderability, resistance to dissolution of

24、 metallization and to soldering heat of surface mounting devices (SMD) IEC 60068-2-78: Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state ISO 3: Preferred numbers Series of preferred numbers EN 62421:2007 5 3 Terms and definitions For the purposes of this document, the terms an

25、d definitions given in the IEC 60068 series, as well as the following, apply. 3.1 electronic module functional block which contains individual electronic elements and /or electronic packages, to be used in a next level assembly NOTE An individual module having an application-specific function, inclu

26、ding electronic, optoelectronic, mechanical or other elements. The module typically provides protection of its elements and packages to assure the required level of reliability. Electronic modules may be categorized by signal interface, for example: wired module: a module which has only electrical i

27、nterfaces (majority of present day modules) wireless module: a module which has a wireless interface opto-electronic module: a module which has an optoelectronic interface sensor module: a module which can input physical information actuator module: a module which could output physical information 3

28、.2 coplanarity distance in height between the lowest and highest leads or terminals when the module is in its seating plane 3.3 operating temperature range range of the ambient temperature at which an electronic module may be used continuously 3.4 storage temperature range range of the ambient tempe

29、rature at which an electronic module may be stored continuously 3.5 rated voltage maximum d.c. voltage or the root-mean square value of an a.c. voltage which may be applied continuously to an electronic module at any temperature within the operating temperature range 4 Business model and interface b

30、etween supplier and user 4.1 Business model (see Figure 1 and Figure 2) 4.1.1 General Business models for electronic module manufacturing are classified into three types (See Figure 1): E-type; M-type; F-type business models. A supplier of material/parts is at one end of a business chain, from the v

31、iewpoint of an electronic module supplier. A user of electronic modules is at the other end of the chain. Items to be specified in standards of electronic modules depend on the business model to which the relevant module is classified. EN 62421:2007 6 Items to be standardized basically depend on the

32、 relationship between suppliers and users (S-U Interface). Moreover, the S-U Interface depends on the business model. The S-U interface showing the relationship between suppliers and users shall be clarified in the scope of a standard for an electronic module. NOTE S-U interface: Supplier and user i

33、nterface. Figure 1 S-U interfaces in each business model 4.1.2 E-type business model The user of the electronic modules is also the supplier of the electronic modules. (The modules are designed, manufactured and used within the same company.) Business chain and models Design Substrate manufacturingA

34、ssembly Test Packaging E-Type(OEM) M-Type(module manufacturer)F-Type (Fabless) Design Substrate manufacturingAssembly Test Packaging Supply to userDesign Substrate manufacturing Assembly Test Packaging Supply to user Material and parts supply Equipment production Equipment production Equipment produ

35、ction S-U interface 3 S-U interface 2 S-U Interface 2 S-UInterface 1UserUser IEC 1688/07 EN 62421:2007 7 An S-U interface exists only between the supplier of materials/parts and the supplier of the electronic modules. NOTE Certain design or manufacturing processes may be subcontracted under the resp

36、onsibility of the manufacturer. 4.1.3 M-type business model The supplier of the electronic modules designs, manufactures and supplies the electronic modules to the user. An S-U interface exists between the supplier and the user of the electronic modules. An additional S-U interface may also exist be

37、tween suppliers of materials/parts and the supplier of the electronic modules. NOTE Certain designs or manufacturing processes may be subcontracted under the responsibility of the module manufacturer. 4.1.4 F-type business model The (fabless) supplier of the electronic modules designs and supplies t

38、he electronic modules to the user. Final design and manufacturing takes place at one or more specialized subcontractors (original design manufacturer (ODM) - foundries). In this case, S-U interfaces are found between the designer (fabless) and the manufacturers (ODM - foundries) of electronic module

39、s, between the supplier and the user of electronic modules, and also between the suppliers of materials/parts and the supplier of electronic modules. NOTE More complex allotment of business may exist in the F-type business model. When sectional standards for F-type business model are developed, deta

40、ils of the interface should be defined in them. 4.2 S-U interface (see Figure 1) 4.2.1 S-U interface 1 The S-U interface1 is defined as the interface between the supplier of electronic modules and supplier of material/parts. This interface exists on all the E-type, M-type and F-type business models.

41、 4.2.2 S-U interface2 The S-U interface2 is defined as the interface between designer (fabless) and the manufacturers (ODM - foundries) of electronic modules. This interface is found only in the F-type business model. 4.2.3 S-U interface3 The S-U interface3 is defined as the interface between suppli

42、er and user of electronic modules. This interface exists in both of the M-type and F-type business models. 4.3 Standardization areas Figure 2 shows typical standardization areas in M-type and F-type business models. The standardization area of S-U interface3 is described in Clause 5 and Clause 6 of

43、this standard. EN 62421:2007 8 The standardization area of S-U interface2 shall be described by standards under the scope of the F-type business model. Figure 2 Standardization areas in M-type and F-type business models 5 Preferred ratings 5.1 General This standard provides the minimum number of ite

44、ms for which ratings need to be specified in sectional standards of electronic modules. Each sectional standard shall describe the preferred values appropriate to the subfamily of the electronic modules involved. A rating is a value which establishes preferred ranges of either capability or conditio

45、n beyond which damage to the electronic modules may occur. When typical values are required in these standards, it shall be understood that they are intended as an engineering guidance and are not guaranteed values for operation. Business domain of supplier Business domain of ODM -FoundriesUser Test

46、 methods Outline and dimensions Circuit requirements Development of circuit diagram Circuit design Realization of structure Selection and development of assembly and interconnection technology and materials Inner STRUCTURE design Manufacturing Electronic modules Activity 1 Output/ input Activity 2 O

47、utput/ input Activi ty 3 Output BusinessDomain ofModule Manufacturer Standardization area of S-U interface2Standardization area M-typebusiness modelF-type business model Output/input Test methodsOutline and dimensions Circuit requirementsTest methodsOutline and dimensions Circuit requirementsStandar

48、dization area of S-U interface3IEC 1689/07 EN 62421:2007 9 5.2 Preferred operating temperature range Table 1 provides a list of preferred values of upper and lower operating temperatures. Table 1 Preferred temperatures to be selected for temperature ranges (C) 55 40 25 10 +40 +45 +55 +60 +70 +85 +10

49、0 +105 +125 +150 5.3 Preferred rated voltage The R10 series as specified in ISO 3 is preferred for the selection of rated voltage values. The preferred values of rated voltages below 200 V are as follows: 1,0; 1,25; 1,5; 1,6; 2,0; 2,5; 3,15; 3,3; 4,0; 5,0; 6,3; 8,0; 10,0; 12 The values can be multiplied by 10n, where n is a positive or a negative integer. The preferred values of rated voltages equal to or higher than 200 V are as foll

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